SFBluetoothLowEnergyDeviceA CoreBluetooth wrapper for simple Bluetooth low energy (also known as: Bluetooth 4.0, Bluetooth Smart, BLE) devices.License: CommercialObjective CSFGaugeViewProvides a gauge control for iosLicense: MITObjective CSFRoundProgressCounterViewProvides a progress bar as circle with an optional counter in the center of the circleLicense: MITObjective C